Fix Q_ASSERT function to check ties consistency
Round average pitch for clefs instead of implicit floor
fix insert/delete measures for parts
do not create empty part label
update mtest
fix #2316: small ties
tweaks, including handling of seconds
rework algorithm to parameterize minTieLength
skip if tied notes not adjacent
fix tests
Merge pull request #728 from trig-ger/midi_fixes

Fixes for MIDI import
Merge pull request #735 from MarcSabatella/2316-small-ties

fix #2316: small ties
fix #23366: more fixes for capitalization

and some more fixes.
another forgotten one
Merge pull request #736 from Jojo-Schmitz/23366-orig-texts

more fixes for capitalisation
install FreeSerifBold on Mac OSX
fix #14764

convert qDebug();abort() to qFatal() and if(cond) abort() to
Q_ASSERT(!cond), esp. for the benefit of Windows, where it is impossible
to set a breakpoint on the abort()
Also modernizing mscoreMessageHandler() and making it more informative
by adding file, line and function to the output.
changing all assert() to Q_ASSERT()

except for thirdparty/portmidi/
Merge pull request #737 from Jojo-Schmitz/14764-qDebug+abort-to-qFatal

fix #14764
break in gui and no-gui case